Electrical receptacle connector

Abstract

An electrical receptacle connector includes an insulated housing, conductive terminals, and a fixing base. The insulated housing defines a connecting space therein. The insulated housing includes a tongue portion extending into the connecting space and a base portion arranged at the rear part of the tongue portion. The base portion has a rear wall, two lateral walls extended backward from the rear wall, and an assembling space defined by the rear wall and the two lateral walls. The fixing base is received in the assembling space and defines first through holes and second through holes. The pins of the conductive terminals are passing through the first through holes and the second through holes. The fixing base has a rear wall surface defining grooves communicating with the respective first through holes. The width of the groove is less than the width of the corresponding first through hole.

What is claimed is: 
     
       1. An electrical receptacle connector, comprising:
 a metallic shell, defining a receiving cavity therein; 
 an insulated housing, received in the receiving cavity, the insulated housing defining a connecting space therein, the insulated housing comprising a tongue portion and a base portion, wherein the tongue portion is extended into the connecting space, and the base portion is arranged at the rear part of the tongue portion, wherein the connecting space comprises a first connecting partition and a second connecting partition communicating with each other, wherein the tongue portion comprises a first tongue and a second tongue parallel to each other, the first tongue is received in the first connecting partition, and the second tongue is received in the second connecting partition, wherein the base portion has a rear wall, two lateral walls, an assembling space, and a plurality of terminal positioning slots, the two lateral walls are extended backward from the rear wall, the assembling space is defined by the rear wall and the two lateral walls, and the terminal positioning slots are defined through the rear wall and communicate with the assembling space and the connecting space; 
 a plurality of conductive terminals, comprising a plurality of first terminals and a plurality of second terminals, wherein the first terminals and the second terminals are inserted into the respective terminal positioning slots, wherein the first terminals are at the first tongue, the second terminals are at the second tongue, wherein each of the first terminals and the second terminals has a pin extended backward from the corresponding terminal positioning slot to the assembling space, and the pins are bent and extended vertically; and 
 a fixing base received in the assembling space, wherein the fixing base comprises a bottom portion and a baffle plate extended from the rear part of the bottom portion and extended along vertically, and defines a plurality of first through holes and a plurality of second through holes, the pins of the first terminals are passing through the respective first through holes, the pins of the second terminals are passing through the respective second through holes, wherein the fixing base has a rear wall surface defining a plurality of grooves, the grooves communicate with the respective first through holes, and the width of each of the grooves is less than the width of the corresponding first through hole, each of the first through holes and each of the grooves are arranged at the baffle plate, and each of the second through holes is defined at the bottom portion, and each of the grooves is defined from the corresponding first through hole to the rear wall surface of the baffle plate and extended through the baffle plate. 
 
     
     
       2. The electrical receptacle connector according to  claim 1 , wherein each of the grooves is defined through the baffle plate from a top of the baffle plate to a bottom of the baffle plate. 
     
     
       3. The electrical receptacle connector according to  claim 1 , wherein the number of the first terminals is five, the five pins of the five first terminals are arranged in a row, wherein the number of the second terminals is four, the four pins of the four second terminals are arranged alternately, such that the four pins of the four second terminals are arranged in two parallel rows. 
     
     
       4. The electrical receptacle connector according to  claim 1 , wherein the first terminals comprise a ground terminal and two pairs of differential signal terminals arranged at two sides of the ground terminal. 
     
     
       5. The electrical receptacle connector according to  claim 4 , wherein each terminal of the two pairs of differential signal terminals comprises a flat contact portion, a tail portion and a bending portion, wherein the flat contact portion is arranged at the first tongue, the tail portion is extended from the rear of the flat contact portion and passing through the corresponding first through hole, the bending portion is formed between the flat contact portion and the tail portion. 
     
     
       6. The electrical receptacle connector according to  claim 4 , wherein the width of the pin of the ground terminal is greater than the width of the pin of each terminal of the two pairs of differential signal terminals. 
     
     
       7. The electrical receptacle connector according to  claim 1 , wherein the first tongue has a first surface facing the second tongue, and the first terminals are assembled at the first surface, wherein the second tongue has a second surface and a third surface, the second surface is facing the first surface, the third surface is opposite to the second surface, and wherein the second terminals are assembled at the second surface and the third surface. 
     
     
       8. The electrical receptacle connector according to  claim 1 , wherein the thickness of the first tongue is less than the thickness of the second tongue. 
     
     
       9. An electrical receptacle connector, comprising:
 a metallic shell, defining a receiving cavity therein; 
 an insulated housing, received in the receiving cavity, the insulated housing defining a connecting space therein, the insulated housing comprising a tongue portion and a base portion, wherein the tongue portion is extended into the connecting space, and the base portion is arranged at the rear part of the tongue portion, wherein the connecting space comprises a first connecting partition and a second connecting partition communicating with each other, wherein the tongue portion comprises a first tongue and a second tongue parallel to each other, the first tongue is received in the first connecting partition, and the second tongue is received in the second connecting partition, wherein the base portion has a rear wall, two lateral walls, an assembling space, and a plurality of terminal positioning slots, the two lateral walls are extended backward from the rear wall, the assembling space is defined by the rear wall and the two lateral walls, and the terminal positioning slots are defined through the rear wall and communicate with the assembling space and the connecting space; 
 a plurality of conductive terminals, comprising a plurality of first terminals and a plurality of second terminals, wherein the first terminals and the second terminals are inserted into the respective terminal positioning slots, wherein the first terminals are at the first tongue, the second terminals are at the second tongue, wherein each of the first terminals and the second terminals has a pin extended backward from the corresponding terminal positioning slot to the assembling space, and the pins are bent and extended vertically; and 
 a fixing base received in the assembling space, wherein the fixing base defines a plurality of first through holes and a plurality of second through holes, the pins of the first terminals are passing through the respective first through holes, the pins of the second terminals are passing through the respective second through holes, wherein the fixing base has a front surface and a rear wall, the front surfaces faces to the assembling space, the rear wall surface is opposite to the front surface and away from the assembling space, the rear wall surface defining a plurality of grooves, and the grooves communicate with the respective first through holes, and the width of each of the grooves is less than the width of the corresponding first through hole. 
 
     
     
       10. The electrical receptacle connector according to  claim 9 , wherein one of the grooves is corresponding to one of the first through holes.